Worksheets2025-2025 Chemistry Unit 2 Review Game
Total questions: 83
Worksheet time: 59mins
Mendeleev arranged the elements based on their ______
symbols
properties
atomic numbers
atomic mass
A horizontal row in the periodic table is called a(n)....
family
group
octet
period
Which group is NOT correctly matched with its name?
Group 2: alkaline-earth metals
Group 3: alkali metals
Group 17: halogens
Group 18: noble gases
Which of the following trends decreases across a period?
electronegativity
ionization energy
ionic radii
none of the above
Which of the following elements has the biggest atomic radii?
Cs
Rn
K
Kr
Beryllium is located in which block in the periodic table?
s
p
d
f
Strontium is a(n)
alkali metal
alkaline-earth metal
edible element
transition metal
Elements in the s & p blocks are also known as what?
the ultimate elements
the important elements
the s & p index
The main-group elements
Which of the following is a property of group 18 elements?
Brittleness
High Electrical Conductivity
Malleable
Unlikely to react with other elements
True or False: Because they have an almost complete valence electron shell, the halogens are the least reactive group of elements.
False
True
Most elements are nonmetals.
False
True
Metals are malleable, which means they can be pulled into a wire.
False
True
Metals are good conductors of heat and electricity.
False
True
Positive ions result from the loss of electrons.
False
True
The Law of Octaves says that every 6th element has properties similar to the first element.
False
True
The elements with atomic numbers from 58 through 71 in the periodic table are called the Alkaline Earth metals.
True
False
The energy required to remove one electron from an atom is called its ionization energy
True
False
A column in the periodic table is called a ___.
group
period
block
series
As you move across the period, elements become more ___.
metallic
non-metallic
gaseous
radioactive
Which of the following best describes the differences between metals, metalloids, and nonmetals?
Metals are good conductors of electricity, metalloids have properties of both metals and nonmetals, and nonmetals are poor conductors.
Metals are poor conductors of electricity, metalloids are non-reactive, and nonmetals are shiny.
Metals are brittle, metalloids are malleable, and nonmetals are ductile.
Metals are non-reactive, metalloids are good conductors, and nonmetals are shiny.
A horizontal row in the periodic table is called what?
a family
a group
an octet
a period
Which group is NOT correctly matched with its name?
Group 2: alkaline-earth metals
Group 3: alkali metals
Group 17: halogens
Group 18: noble gases
Which of the following elements has the smallest electron affinity?
Sodium
Magnesium
Potassium
Calcium
Which of the following trends decreases left to right across a period?
electron affinity
ionization energy
ionic radii
none of the above
Which of the following elements has the biggest atomic radii?
Cs
Rn
K
Kr
Beryllium is located in which block in the periodic table?
s
p
d
f
Which of the following elements is in the p-block?
Zn
Er
Te
Y
Strontium is a(n)
alkali metal
alkaline-earth metal
edible element
transition metal
The most electronegative of all the elements is
oxygen
fluorine
helium
None of the above
Identify the period of [Ne] 3s1
(a)
Identify the group for element [Ne] 3s1.
(a)
Identify the Block for [Ne] 3s1.
(a)
Identify the Period for the element [Kr] 4d6 5s2.
(a)
Identify the group for the element [Kr] 4d6 5s2.
(a)
Identify the block for the element [Kr] 4d6 5s2.
(a)
Identify the period for the element [Ne] 3s2 3p4
(a)
Identify the group for the element [Ne] 3s2 3p4
(a)
Identify the Block for the element [Ne] 3s2 3p4
(a)
Identify the Period for the element [Ar] 3d5 4s2
(a)
Identify the group for the element [Ar] 3d5 4s2
(a)
Identify the block for [Ar] 3d5 4s2
(a)
Identify the period for the element [Xe] 5f146d97s1
(a)
How are elements on the current periodic table arranged?
atomic number
atomic mass
alphabetical order
by color
Without looking at your Periodic table what group is [Kr]5s2
1
2
18
17
What is the term for the horizontal rows on the periodic table?
(a)
What determines an elements atomic number
It's Mass
When it was discovered
The number of Neutrons
The number of Protons/Electrons
Which blocks of the periodic table are considered main-group elements
s-block only
d & f blocks
s & p Blocks
s, p, & d Blocks
What is the term for the vertical columns of the periodic table?
(a)
What Group of elements is located in the d-block of the periodic table
alkali metals
halogens
transition metals
alkaline-earth metals
Without looking at your Periodic table, which period is [Kr] 5s1 located in
5
1
3
2
The atomic radii gets (a) as you move across the period
How does Ionic Radii change as you move across a period?
It increases
It decreases
How does ionic radii change as you move down a group
Increases
Decreases
In general, What Type of ions do nonmetals tend to form?
Negative anions
Positive Cations
In General: What Types of ions do the main group metals tend to form?
Negative anions
Positive Cations
What is the name of a negative ion
Anion
Cation
What is the name of a positive ion
Cation
Anion
How does Electron Affinity Change going down a group?
It increases
It decreases
How does ionization energy change as it moves down a group?
(a)
Which of the elements has the smallest atomic radius?
Li
O
C
F
Which of the Following elements has the largest atomic Radius?
Li
O
C
F
How does ionization energy change as it moves across a period
(a)
Identify the group for [Kr]4d65s2
(a)
Identify the block for [Kr]4d65s2
(a)
Identify the period for [Kr]4d65s2
(a)
How does atomic radii change as you move down a group on the periodic table?
It increases
It stays the same
It Decreases
There is no relationship
These elements are the most reactive of the non-metals
Alkali metals
Lanthanides
Noble Gases
Halogens
What did Mendeleev arrange his first periodic table by?
Atomic Number
Alphabetical order
Color
Atomic Mass
This group of elements do not react with others easily because of their full electron orbitals.
Lanthanide
Actinides
Haloges
Nobel Gases
alkali metals
Fill in the Blank: Mendeleev arranged the elements based on their _______
Symbols
properties
atomic number
Atomic mass
Main-group Elements
P-block and s-block elements combined
Ionization
Process that results in the formation of an ion
Ionization Energy
Energy required to remove one electron from an atom
The Periodic Table
Arrangement of elements in order of their atomic numbers
Anion
Negative ion
Halogens
The most reactive nonmetal elements
Valence Electrons
Electrons in the outer shell of an atom
Electron Affinity
Energy change when an electron is acquired
Cation
Positive ion
Ion
Element with a positive or negative charge as a result of the loss of gain of an electron
Match the following Scientists with their discoveries about the periodic Table
J.W. Dobereiner
Found he could sort elements into groups of three
John Newlands
Sorted known elements by atomic mass, but did not account for unknown elements
Dimitri Mendelev
Sorted elements by atomic mass, and predicted unknown elements
True or false: Most metals are good conductors of heat
True
False
True or false: Nonmetals are malleable
True
False
first to organize the elements by atomic mass; noticed patterns in every 8th element; law of octaves; left no gaps for future discovery; law of octaves did not work for larger elements
Dobereiner
Mendeleev
Seaborg
Newlands
Organized elements by atomic mass; related atomic mass to properties of elements; included all known elements at the time; left spaces and predicted where new elements would fit
Newlands
Mosley
Meyer
Mendeleev
metals; select all that apply
majority of elements
shiny and conductors
left side of PT
most or gases
malleable
all have full valence shell; inert gases; "nonreactive"
Halogens
Actinides
Metalloids
Noble Gases
Alkali Metals; select all that apply
1 valence electron
soft
very reactive
includes Hydrogen
What is the name of the group 1 elements in the periodic table?
alkali metals
transition metals
noble gases
halogens
Match the trend with the correct definition
The strength of attraction between an atom's nucleus and the electrons in that atom.
Electronegativity
The distance from the center of an atom and the furthest electron. This is a measure of an atom's size.
Atomic Radius
The energy required to remove an electron from an atom.
Ionization Energy
The likelihood that that an atom will participate in a chemical reaction
Reactivity
